HKS 21004-AN009 Step Zero 2.8L Stroker Kit for 1989-2002 Nissan Skyline GT-R RB2

Vehicle Fitment

• 1989-2002 Nissan Skyline GT-R (R32/R33/R34) - RB26DETT

Fitment Notes

• Designed for the RB26DETT engine; not compatible with RB25DET or other variants
• Requires professional installation and machining (boring/honing) for optimal performance
• Not CARB legal; not for sale in California

Features

• Increases engine displacement from 2.6L to 2.8L for enhanced performance
• Includes forged 86.5mm pistons, full counterweighted crankshaft, and H-beam connecting rods
• Optimized for high-revving applications with a target RPM of approximately 8,000
• Designed to achieve an engine output target of 549 horsepower
• Full counter design decreases load on metals, enhancing durability
• Ultra-lightweight design for quicker response compared to ordinary Step 1 or Step 2 kits
• Maintains standard rod end pitch to reduce side pressure and friction
• Compatible with target turbines and RPM ranges for improved throttle response

Specifications

• Engine Capacity: 2739cc
• Bore: 86.5mm
• Stroke: 77.7mm
• Compression Ratio: Variable, depending on piston choice
• Allowable RPM: Approximately 8,000 RPM
• Target Engine Output: 549 horsepower
• Required Modifications: Boring and honing of engine block
• Full Flow Modification: Not required

Included Components

• 1x Forged 86.5mm Pistons (set of 6)
• 1x Full Counterweighted Crankshaft
• 1x H-beam Connecting Rods (set of 6)
• 1x Piston Rings (set of 6)
• 1x Wrist Pins (set of 6)
• 1x Retaining Clips (set of 6)

Product Description

The HKS 21004-AN009 Step Zero 2.8L Stroker Kit is engineered for the Nissan Skyline GT-R RB26DETT engine, offering a significant displacement increase from 2.6L to 2.8L. This kit includes high-quality forged 86.5mm pistons, a full counterweighted crankshaft, and H-beam connecting rods, all designed to work in conjunction to enhance engine performance and durability.

Optimized for high-revving applications, the kit allows for an approximate RPM of 8,000 and targets an engine output of 549 horsepower. The full counter design reduces load on metals, while the ultra-lightweight components provide quicker response compared to ordinary Step 1 or Step 2 kits. Additionally, the design maintains the standard rod end pitch, reducing side pressure and friction for improved engine stability.

Installation of this kit requires professional machining, including boring and honing of the engine block, to accommodate the increased displacement. It is important to note that this kit is not CARB legal and is not for sale in California. For optimal performance, professional installation and tuning are recommended.